 
      ;; show coffeescript
      #(go
+           (swap! state assoc :caption
+                  (html [:div
+                         "(to be continued...)"]))
         (swap! state assoc :enable-orbits? true)
         (swap! state assoc-in [:radar :orbit] :coffeescript)
         (swap! state assoc-in [:coffeescript :highlight] true)

                         [:a {:href "http://flowtype.org/"
                              :target "_blank"}
                          "Flow"]
                         " will check for type safety as well, but even without type annotations."
                         ]))
           (swap! state assoc-in [:static :typescript :alpha] low)
           (<! (multi-animate!


        ;; fade out staticsphere details
        #(go
           (swap! state assoc :caption
                  (html [:div
                         "This is our simplified two-layer view of JS. We now leave the JS language for new worlds..."
                         ]))
           (<! (multi-animate!
                 {:a :_ :b 0 :duration 1} [:static :typescript :alpha]
                 {:a :_ :b 0 :duration 1} [:static :flow :alpha]
